Single- and central-diffractive production of open charm and bottom mesons at the LHC: theoretical predictions and experimental capabilities

Abstract

We discuss diffractive production of open charm and bottom mesons at the LHC. The differential cross sections for single- and central-diffractive mechanisms for $c\bar{c}$ and $b\bar{b}$ pair production are calculated in the framework of the Ingelman-Schlein model corrected for absorption effects. In this approach one assumes that the pomeron has a well defined partonic structure, and that the hard process takes place in a pomeron-proton or proton-pomeron (single diffraction) or pomeron-pomeron (central diffraction) processes. Here, leading-order gluon-gluon fusion and quark-antiquark anihilation partonic subprocesses are taken into consideration, which are calculated within standard collinear approximation. Both pomeron flux factors as well as parton distributions in the pomeron are taken from the H1 Collaboration analysis of diffractive structure function and diffractive dijets at HERA. The extra corrections from subleading reggeon exchanges are explicitly calculated and are also taken into consideration. Several quark-level differential distributions are shown. The hadronization of charm and bottom quarks is taken into account by means of fragmentation function technique. Predictions for single- and central-diffractive production in the case of inclusive $D$ and $B$ mesons, as well as $D\bar{D}$ pairs are presented, including detector acceptance of the ATLAS, CMS and LHCb Collaborations. The experimental aspects of possible standard and dedicated measurements are carefully discussed.

16 pages, 19 figures, 1 table

References in corpus (6)

• Exclusive photoproduction of $J/\psi$ in proton-proton and proton-antiproton scattering
• Measurement of exclusive production of scalar ${\chi }_{c0}$ meson in proton-(anti)proton collisions via ${\chi }_{c0}\to {\pi }^{+}{\pi }^{-}$ decay
• $W^{+}{W}^{-}$ pair production in proton-proton collisions: small missing terms
• Survival probability for diffractive dijet production in p-pbar collisions from next-to-leading order calculations
• Production of Z^0 bosons with rapidity gaps: exclusive photoproduction in gamma p and p p collisions and inclusive double diffractive Z^0's
• The Interplay between Data and Theory in Recent Unitarity Models

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• Inclusive diffractive ${\eta }_{\mathrm{c}}$ production in pp, pA and AA modes at the LHC
• Probing the diffractive production of gauge bosons at forward rapidities
• Diffractive processes at the LHC within $k_t$ -factorization approach